Isaac w



(No Model.)

I. W. N'UMAN.

PUMP.

Ptente ug. 19, 1884.

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ISAAC W. NUMAN, OF CANTON, OHIO.

PUMP.

SPECIFICATION forming part of Letters Patent No. 303,661, dated August19, 1884.

Application filed November 5, 1383. (No model.)

To (LZZ 107mm t may concern:

Be it known that I, ISAAC W. NUMAN, a citizen of the United States,residing at Canton, inr the county of Stark and State of Ohio, haveinvented certain new and useful Improvements in Pumps, of which thefollowing is a specification, reference being had therein to theaecoinpanying drawings.

Figure l is a side view of a pump embodying my improvements. Fig. 2 is aVertical section oi' the same. Fig. 3 is a face view of thespray-former. Fig. 4 is a sectional view ofthe last said device.

In the drawings, A represents the working barrel or tube. It ispreferably formed of tin. At the lower end it is soldered to anoutwardly-extending annulns or ring, A', of similar material. This ringilares upwardly somewhat, and is thereby adapted to receive the daringmouth of a tin screw-threaded cylinder, A2. Upon this cylinder thereiits a threaded cap, A, of tin. By constructing these parts ot' the pumpin this way I am enabled to utilize an article of manufacture which hasbeen heretofore devoted to other purposes, to wit: the screw-threadedcylinder A2 and its cap A, they being of the kind now separatelymanufactured in large quantities and sold for use in making tin Vessels,&c. I i'orm an aperture, a, in the cap A, which serves as a port for theadmission of water to the barrel A, and upon the inside of the cap A3,before putting it in place, I secure, in any suitable way, a flexiblevalve, a, it preferably being a small piece of leather or rubberfastened by rivets. Not only can this part of the pump be made morecheaply by using the threaded cylinder and cap A2 A, they being foundupon the markets in large quantities at small cost, but, moreover, Ipermit an immediate and ready access to the lower end of theworking-barrel and to the valve a when such access is necessary. Thewater after entering the barrel A escapes therefrom through twoapertures7 a2 c3, having valves a" and c5, respectively. Both of theseapertures communicate with a single tube, B, which is situated aroundand concentric with the barrel A, this tube being at the lower endsoldered to the tube D', so that the cliamberwithin the tube is closed.

Below this outer chamber there is a lower chamber, D, preferably formedwithin the short tube D, constructed separately from the tube B, butsecured thereto by solder, as said. By constructing the part Dseparately from the part B, I can conveniently introduce the necessaryinstruments before soldering or otherwise fastening the collar or iiangeA at its outer edge either to the part D or the part B. After Vtheseparts are joined together, the portion D serves to protect the lower endof the working-barrel, and the chamber D therein supplies abody of waterwhich can be drawn by a piston, the entrance of the water therein beingpermitted by a series of apertures, d. -At the upper end the parts ofthe pump are joined together in a somewhat similar manner to thatdescribed-that is to say, a collar or flange, B, is

secured to the upper end of the tube B, it having an inwardly-eonvergingpart, b, to which can be readily secured a threaded tin cylinder similarto that at A2, and upon which fits a perforated cap, F. Before thecylinder B is soldered to the part B the latter is soldered to thecylinder A. V

F represents a plug', which may be made of wood, rubber, or othersuitable material, wood, however, being preferred for most purposes, asit is cheap and can be readily made, shaped, and fitted to its place. Atj" a recess or socket is formed in the top oi' it around the aperturethrough which passesthe piston-rod. In this aperture there is seated apacking material to keep air-tight the passage through which thepiston-rod moves. This rod is represented by G. It passes up through theplug F and the perforated cap E, and is at the top provided with anysuitable handle. At the lower end it carries the piston G', which may bemade in any suitable way, though I prefer the form which I have devised,it being cast of metal with a groove in, its periphery, in which can besecured a suitable packingmaterial, g. rllhe piston, however, is notpacked to such an extent as to iit tightly the barrel A; but, on theotherhand, its diameter is such that there shall be more or less of apassage-way around it for the water to move from the lower to the upperside of the piston.

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II represents a nozzle, which can be of flexible hose or tin, aspreferred. Vhen made of rubber, it has a tin nozzle, I, tapering to acomparativel y small point, whereby it is adapted 5 to throw a jet ofwater to a comparatively long distance. W'hen it is desired to form asheet or spray of the water, it can be done by means of the detachabledevice J, having a conical socket, j, adapted to lit upon the end fi ofthe io nozzle I, and a fan-shaped blade, j, which has divergingcorrugations. The water passes through the socket j and strikes againstthe blade j', which, by means of the corrugations, spreads the stream ofwater out into the desired sheet or spray, the blade being curvedsomewhat in longitudinal section.

To hold the pump iirml y in position, I provide a stirrup or footpiece,K. In order that this may be supplied cheaply, I have devised 2o' ameans for attaching the wooden saddle-stirrup commonly in use andobtainable in the market at a low price. I secure it to the pump bymeans of a bracket, L, the ends of which at Z and Z are soldered to theouter barrel, B.

The joining part Zzis bolted to a bar, K, which at the lower end isfastened to the stirrup K.

The diameter of the piston, the workingbarrel A, and the ports a2 and aare so related to each other that when the piston is 3o being forceddownward a portion of the water shall be forced through the port a2, andanother portion thereof shall be forced from the lower side to the upperside of the piston.

I Vhen the piston is being drawn up, this lat- 3 5 ter portion of thewater is lifted with it and forced through the port c, the valves a andaf opening and closing to permit these alternate passages of the waterfrom the barrel A to the tube B. In this way a practical con- 4o tinuousstream ofwater is provided.

I am aware of the fact that this principle of operation has beenembodied in pumps heretofore, and I do not therefore claim, broadly, thecombination of a piston with a workingbarrel having two escape-orifices,and having an interior diameter somewhat larger than that of the piston;but in the pumps heretofore used involving this principle of theoperation of the piston the working-barrel A 5o has been situatedoutside of and at more or less distance from the receiving-barrel. One

of the desirable features in a pump of this sort is that it shouldoccupy as little horizontal area as possible, and when two tubes are 5 5arranged parallel to each other, and provided with connecting andsupporting means, more room is taken up than is convenient.

By arranging the working-barrel concentric within the receiving-tube thedevice as a whole can be made to occupy less room, is more symmetricaland tasty in appearance, and can have the foot-rest secured thereto insuch manner as to hold firmly both of the barrels.

I am aware that aportable force-pump having a working-barrel, a solidpiston working tightly therein, and a surrounding air-chamber concentricwith the working-barrel has been known, and I disclaim suchconstruction.

l. In a portable pump, the combination of t-he inner tube orworking-barrel having a valve at the bottom, the outer tube or barrelarranged around the outside of the workingbarrel, and communicating withthe interior thereof by means of two valves, and the piston smaller indiameter than the working-barrel, and situated between the two valves,whereby each stroke of the piston forces a stream of water into theouter tube, subsanltially as set forth.

2. In a portable pump, the combination of the working-barrel A, theouter tube, B, the screw-threaded sheet-metal cylinder A2 at the lowerend of the working-barrel, the perforated sheet-metal threaded cap A3,secured to the threaded cylinder A2, and provided with a perforation anda valve for the inlet of water, substantially as set forth.

3. In a portable pump, the combination of the inner working-barrel, A,the outer receiving-barrel, B, the annulus or iiange A', secured to thebarrel A, and secured to a supporting part at its outer edge, and thelower part, D', constructed separately froln the part B and j oinedthereto, substantially as set forth.

4. In a portable pump, the combination ofthe inner working-barrel, A,the outer concentric tube, B, the flange or collar B, the threadedcylindrical cap secured to said flange or collar, the piston-rod, andthe packing between the cylindrical cap and the piston-rod, constructedand arranged substantially as set forth.

5. In combination with a portable pump, the bracket L, having the armsZZ secured to the pump,the stirrup-shaped foot-piece K, and the bar K',connecting the foot-piece with the bracket, substantially as set forth.

In testimony whereof I aiiix my signature in presence of two witnesses.

ISAAC XV. NUMAN.

Vitnesses:

Gno. E. BALDWIN, J. A. XVANN.

ICO

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